支气管扩张()
A.咯鲜血
B.烂桃样痰
C.粉红色泡沫样血痰
D.巧克力色浓痰
E.铁锈色痰
参考答案:A
刮削导轨时,应先刮()表面。
A.大
B.小
C.上
D.下
High pressure and low pressure alarms must be tested().
A.no earlier than 24 hours prior to loading
B.no later than 24 hours prior to loading
C.anytime prior to loading
D.weekly